Thermostatic pressure-valve.



,, f E. B. WALSH.

THERMOSTATIC PRESSURE VALVE; APPLICATION FILED mus. 191g, azniym; mg.21, m1.

' and useful/Improvements in lorarnn J31" unseen n. wansn, or naoonnvn',

NEW YORK, ASSIGNOR, BY DIRECT AND ldfl NlE ASSIGNMENTS, TO THE WAL$HMANUFACTURING AND HEATING COMPANY, INC.,

A CORPORATION OF NEW YORK.

rrinnmosra'rrc reassures-verve.

' application filed January 5, 1915, Serial No. 590.

the supply of fuel to a burner for the heater.

' Another object of, the invention is to provide a compact andthoroughly reliable autornatically. operating valve which isparticularly adapted for operation under 1ncreasingpressure due to theincrease in the temperature in the radiator, so that the supply of gasor other fuel to the burner oi'a radiator heater may be automaticallyregulated to maintain the water at a uniform temperature and to maintaina uniform generation of stea1n.,while means are also provided forfacilitating the supplying of the radiator with water and fordetermining the height oi the water therein.

lln the drawings formingpart of this application: 1 Figure 1 is an endview of the lower end of a radiator having" a heater and my improvedvalve attached, in which view parts are broken. away to morefully-illustrate the construction, I

Fig. 2 is a sectional view. taken on the line 2 2 of Fig. 1 and Fig. 3is a sectional line 3-3 of Fig. 1, r 0

In the illustrated embodiment of my invention 1 indicates-3 a radiatorof ordinary construction, only a portion of which is shown because theremainder is well known.

view, taken on the it comprises the sections 2 adapted to con tain waterand they communicatethroug'h common connecting pipes 3 in the bosses 4,through which water and steam may circulate. The radiator may heconnected with a steam system or it may be an independent unit, sincethe present invention is not limited to either arrangement. in the useof Specification of LettersPatent.

have invented certain new use in connecalthough the" partly RenewedMarch 21, 1917. Serial No. 156,452'.

the device the lower portion of the radiator is inclosed by a casing 5having portions 6- fitting between the sections 2 so as. to prevent theescape of the heat generated beneath the radiator before the desiredefiect has been obtained, and to thereby secure a maximum heating of thewater in the radia tor.

Patented July a tort."

The specific construction of. this casing or heater forms the subjectmatter of a co-pendmg application filed concurrently herewith andserially numbered 591. lhe casing consists of an angular piece 7 havingntegral or attached feet 8 by which the cars mg 1s supported in spacedrelation to the floor. A bottom 9 is supported on the angular piece 7and the legs 10 of the radiator fit within the casing and rest on thetops of the feet 8, whereby the radiator is supported upon the feet ofthe heater. There is another bottom plate, 11, supported on the firstone by the flanges 12, and separated therefrom to form a draft space 13.The'plate 9 1s openat 14 to admit air to the combust1on chamber 15. Inthe combustion chamber there is arranged a burner consisting of a tube16 having apertures 17 to permit the fuel to escape and combustion takesplace near these apertures. This burner is arranged inside thecombustion chamber, tween the radiator legs and under the sections 2 andit is adapted to heat the water in the radiator.

The present .device connects with threaded boss 4 of the end section 2.so as to be automatically actuated by the increased pressure caused bythe e'Kpansionof the water or steam in the radiator. or vice I versa,and it comprises a relatively flat valve casing 18 formed of a section19 hav ing' a threaded attaching extension 20 e1- tending laterally tothe boss lwhereby communication is established between the interior ofthe radiator and the interior of the valve casing: 18.

The other section 21 of the valve casing and the first mentioned sectionare oth provided with apertured flanges 22,23 removably connected bythe. screws 24, and a flexible diaphragm 25 is mounted between thesections and tween the flanges 22 23 whereby the dia-. phragm may hreadfly renewed when nea therefrom for attachment ldti held around itsedge hei essary. Carried by the section 21 of the valve casing andpreferably formed integral therewlth is an auxiliary valve casing 26which is connected with an inlet or supply Bunsen tube 32- and mixingchamber The latter is preferably supported in.'horizontal alinement withthe burner 16 and it is connected'gwith the latter. A needle valve 34 isprovided to control the supply of fuel passing from the pipe 31 into themixing chamber 33 and the burnen The valve 34 is removably attached tothe end of the pipe 31 so as to permit the parts to be assembled and vThe valve casdisassembled conveniently. ing 35 has a plate 36 which fitsinto the end of the Bunsen tube 32 and it is provided with a number ofapertures 37 to allow air to enter the bunsen with the gas. In order toadmit an additional and regulated supply of air when desired I haveprovided a shutter'88 which fits over the end of the bunsen 32 and ithas an opening 39 which is made to register more or less with theopening 40 in the bunsen when the shutter is turned around. Thus theadditional air supply may be regulated to suit the requirements.

In order to control the quantity of fuel or gas supplied to the burnerwhen the valves 29 and 34 are properly regulated a cylindrical valve 41is provided, having a reduced end 43. This valve moves in a bore 42 inthe casing 21, 26 at right angles to the bores 28 and 30 and it isremovably connected to the diaphragm by means of a fastening screw 44.This screw passes through the diaphragm and into the valve and "on oneside of the diaphragm there is a washer 45 and on the other a spring 46,all held together by the screw. The spring 46 carried by the diaphragmhas its free ends arranged to contact with the inner face of the casingsection 21, so as to normally open the valve 41 and cause the diaphragmto assume the flat position shown in Fig. 2 when relieved of excessivepressure. 7

The valve casing has leading from its section'19 upper and lowerhorizontal extensions 47, 48 on the free ends of which are angularmembers 49, and threaded on these latter are nuts 50 which hold a gageglass 51 which indicates the height of the water in the radiator towhich the heater is attached. Water may be introduced into the radiatorthrough the valve casing 19 by removing the After passing into vscrew'plug 52 and pouring it through the plug opening.

lVhen the device is first placed in operation the necessary water isintroduced into the opening at the plug 52- and the diaphragm isstraight or in a flat plane. The valves 29 and 34 are adjusted to permitthe fuel to pass to the burner. The gas being ignited at the burner,heat is generated in the chamber 1:") and it heats the water in theradiator to a point where steam is generated and circulated through thesections 2. lVhen the pressure of the expanded water or steam hasincreased to the desired limit the diaphragm will be flexed by thepressure on one side thereof and against the action of the spring 46.Should the pressure become excessive and make necessary a decrease inthe fuel supply the diaphragm will be flexed outwardly and this willmove the valve 41 outwardly and decrease the opening at the ports 28,30, and thereby decrease the flow of gas to the burner; but, owing tothe slanting end of the valve 41 the supply will not be entirely shutoff, but the flame will be reduced sufliciently to prevent excessive andI dangerous heating of the water in the radiator. The diaphragm willvary between the extreme positionsfrom time to time and thus will varythe supply of fuel, and control the generation of steam so as topreserve uniform temperature in the rooms, v

Having described my invention, what I claim is:

1. Ina pressure valve, the combination with a reservoir adapted tocontain water under pressure and having a water supply connection and athreaded opening near its lower, portion; of a diaphragm casingcomcentral portion thereof and operating through said diaphragm sectionto coiiperate with the valve seat and regulate the size of the passagetherethrough, a supply pipe connected with one end of said angularfitting, and a burner communicating with the other connection andreceiving a supply of fuel therethrough for the heating of the water inthe reservoir, variation in the internal pressure in the reservoir dueto the heating of the water at various temperatures serving to close oropen the valve by varying pressures on the diaphragm.

2. A thermostatic valve comprising a casing, a diaphragm in the casing,said casing having an opening with an extension adapted for attachmentto a radiator, an auxiliary valve integral with the casing and having aseat, a cylindrical valve connected to the diaphragm and operatingthrough the casat ter in the radiator, an outlet pipe also com- Tmunicating with said auxiliary valve and seat to partly cut oifthe-supply when seated,

a supply pipe for fuel conununicatingwith the auxiliary valve; a burnerto heat the wa- .with the burner, said valve being shifted by a theflexing of the diaphragm under excessive pressure to restrict the flowof fuel to thesupply pipe, and a gage glass having a filling member forsupplying water to the radiator. a

Signed this 22nd day of December, 1914, at the city, county and State ofNew York, United States of America.

EUGENE B; WALSH f Signed in the-presence of- IYHARRYAQNADEIQV K- C- LAGKURN.

